Kerlix Gauze Rolls 2.25 X 3 Yd Sterile Bx 12 Specimen Collection Products *Retail boxed w fitted foam inside Color:Yellow *Retail boxed w fitted foam inside * Amplifies up to 16x (24db) over traditional acoustic scopes * Patented piezopolymer film contact microphone provides wider frequency response than acoustic mikes used in competing models *Three frequency modes: Bell (15 200Hz) for cardiac sounds Diaphragm (100 500Hz) for lung sounds Extended Range (15 1000Hz) *16 level volume control * Holds last mode and volume setting for convenience *Auto shut off after 3 minutes extends battery life *Battery warning LED signals when replacement needed *Binaurals fixed at 15ß angle for snug fit *Specially constructed ADSOFT⁄ PVC eartips * Weight: under 6 oz measures just 28 * Uses ÀAAAÃ battery (included) * Made in Korea * 2 year warranty Seat Width 16 Seat Depth 16 Back Height 16 Seat Height Front 18 0 Yard Roll * Made of prewashed fluff dried 100% woven gauze with unique weave pattern for loft and bulk to cushion and protect wound areas * 6 ply with finished edges * Primary or secondary dressing use * Excellent absorbency * Packaged individual polybag STERILE IN SOFT POUCH * 2